Metallic spool



Feb. 19, 1935. F, ALTER 1,991,435

METALLIC SPOOL Filed Aug. 19, 1933 ATTORNEYS head then :being performedwith arsimple spin- Patented Feb. 1 9, 1935 ICE i i George F;

"3 v g I Walton-Brooklyn, N. Y., assignor to 1 v "American canCompanmNe-w York, N. Y., a

- corporaiionof-Newjersey I Y AnnlicationffAugust t, rose, Serial No.685,913

6 Claims. 4011242 4123) n present invention relates to metallic spoolstor. adhesive tape, medicinal bandages and the I likaand has for itsobject :the improvement and simplification of their construction,such-metal- 5 spools comprising generally a mainbody or core partland apair of end pieces or heads secured to the ends ofthe. core. t

The present invention. contemplates utilizing struck out spacing membersorridgesin theeore ofthe spool as backing up or :folding elements .torthe spool heads and the side seamof'the .core part may also beutilizedinthis capacity. The principal object of the present invention istheprovision of a spool core. .andspool heads poi simplified construction,:the core wall having projecting s acing members. or rridges andrthe,more longitudinal ridges v16 struck outwardly ends of these ridgesprovidinghabutments for rthespool heads thus making a :rigid .and"simple holding construction forsthe spool parts. 1 t

v V The present invention lhasior .a further object the provision of aspool assembly which maybe imaded with a wound .reel. of tape or1 othersuitable material-priorto the: final; attachment of one of the spoolheads, this final attachment of ning-cor .bending operation. V g aTheprojecti-ng ridges of the spool besides providing for the .rigidholdingsconstruction of parts strengthen the core and also present.antiefrictional supports for thereel of tape; thusfaci-li- #:tatingitsunwindingrfo-r tuse. .1 o v if:

Numerous other objects and advantages of the invention will .be apparentas it is better understood from the following description, which,

sta'ken .in' connection, with the accompanying drawing ,1 discloses :apreferred embodiment there- Figure l islanv exploded, perspective viewof an incompleted spool embodying the present invention and also showinga reel of material in position for assembly;

Fig. 2 is a longitudinal sectional view taken through the loaded spool,showing one of the spool heads firmly fixed to the spool core and theother head in position for final attachment;

Fig. 3 is a View similar to Fig. 2 partly broken away and illustratingthe core and head after final attachment;

Fig. 4 is a transverse sectional view of the core taken substantiallyalong the line 4-4 in Fig. 3;

Fig. 5 is an enlarged, fragmentary, sectional view taken through one endof the core and illustrating the loaded reel on the core and the 5 headin position preparatory to final attach- 5 ment; and

Fig.4 6 ,isa, view similar to Fig. illustrating the head interlocked in.its final engagement with the core. r g

As illustrated in the-drawing the embodiment of; the present inventioncomprises a tubular or cylindrical core 11 which may be formedfrom ametal blank having its ends securedto ether in aside seam 12. This sideseam comprises a central spacing section or look seam portion 13 whichis pressed outwardly beyond the ,sur-

faceof the core as bestshown in Figs. 1 and 4.

The ends of the side seam comprise-flush portions 14 and the ends of thelock seam part '13 constitute-abutting edges 15 which .are a short Idistance: from the ends of the core l5 The core 11 may alsobeprovided'thlone or i from its. cylindrical wall. These ridges are the samelength and-extend substantially in-the same manner as the lock seam part130i; the

side seam.;- The ends of the ridges constitute abutting edges 17 whichare in the same transverse plane as the abutting edges 15 of the sideadjacent eachaperture 23 is turned outward into an axially extendingflange 24 which is merged into an annular outwardly pressed portion 25.in the head wallas best illustrated in Figs. 5 and 6.

In forming the spool one of the heads21isfirst positioned on one end ofthe core ll, thepore-end extending into. the aperture 23. The head ispushed back on the coreuntil the wall of the annular part 25 isbroughtinto engagement with t e. abutt .ends-1. ..;l. 9i theg d s am anspacing ridges. The outer end of the core is then curled over or bentback over the projecting flange 24 of the head as at 26 in Fig. 2.

This interengagement of the end of the core with the flange of the headprovides an interlocked joint or seam 2'? for the one head of the spool.This much of the assembled spool is illustrated onthe left of Fig. 1.The tape. or other material for which the spool is designed haspreviously been wound in reel form 31 (Figs. 1 and 2) in the usualmanner as over a fibre tube 32.

The tube 32 is of inner diameter slightly greater than the outsidediameter of an imaginary circle passing through the outer surface of theprojecting parts of the side seam 12 and of the 5 ridges 16. The reel 31is pushed over the free end of the core and the inner tube 32 encirclesthe projecting side seam and the ridges.

The opposite head 21 is then slipped over the free end of the core 11(Figs. 2 and 5) with its flange 24 extending outwardly over the end ofthe core. of the annular part 25 is in engagement with the abuttingedges 15, 17. of the parts 12, 16. The outer end of the core need thenbe only curled over or spun back as at 33 (Figs. 3 and 6) to provide aninterlocked seam joint 34 which holds the head wall solidly against theabutting spool ridge edges. 7 a

This construction of core and head thus pro vides for a rigid yet simpleform of support for the heads which rest at all times against the edgesof the side seam and the spacing ridges. The interlocked seams 27, 34 ofthe spool are simple to make being a mere spinning of the core ends. Thespacing ridges and these spun core ends prevent any sliding movement ofthe heads relative to the core.

The reel 31 is free to turn on the core 11, the outer engaged surfacesof the parts 12, 16 against the inner wall of the tube 32 being ofsufiicient extent to hold the reel in rotating position within the epoolbut not large enough to present frictional resistance against the freeturning of the tube on the core. The tape and tube are of slightly lesswidth than the distance between the spool heads held by the spacingmembers for this purpose.

It is thought that the invention and many of its attendant advantageswill be understood from the foregoing description, and it willbeapparent that various changes may be made in the form,

"construction and arrangement of the parts without departing from thespirit and scope of the invention or sacrificing all of its materialadvantages, the form hereinbefore described being merely a preferredembodiment thereof.

I claim: I 1. A metallic spool, comprising a core having longitudinalstruck out spacing ridges extending I for substantially the length ofthe coreand terminating short of an end of the core, and a spool headpositioned on the end of said core'and abutting the edges of saidridges, the end of said core being interlocked with said head to hold itfirmly I against the said ridge edges. i

the adjacent ends of said core being interlocked In this position thehead wall at the basewith the said heads and holding them firmly againstthe edges of said core ridges.

3. A'metallic spool, comprising a cylindrical core having a side seamformed with a central locked portion and two end flush portions, theformer extending out beyond the cylindrical wall of said core andterminating in abutting shoulders located adjacent to but short of thecore ends, and spool heads positioned on the ends of said core andresting against the said abutting shoulders, the ends of said core beinginterlocked with said heads to hold the parts in fixed relation.

4. A metallic spool, comprising a cylindrical core-having a side seamformed with a central locked portion and two end flush portions, theformer extending out beyond the cylindrical wall of said core andterminating in abutting shoulders located adjacent to but short of thecore ends, said core also having longitudinal struck out spacing ridgesalso extending out beyond the cylindrical wall of said core and"terminating in abutting edges, and spool heads located on the ends ofsaid core and resting against the v abutting shoulders of said side seamand against the abuttingedges of said longitudinal ridges, the ends ofsaid core being interlocked with-said heads to hold the parts in fixedrelation.

5. A metallic spool, comprising a core having longitudinal struck outspacing ridges extending from one spool head to the other so as to formsupports for a reel tube and terminating short of the ends of the core,and spool heads having central apertures surrounded by right angled Hfiangespositioned on the ends of said core with the said flanges restingon the core and the heads abutting'the end edges of the ridges, the endsof said core extending beyond said heads and being curledback and overthe said flanges for holding'short of its ends, and also having a sideseam "formed with a central locked portion and two end flush portions,the locked portion also terminating short of the ends of the core, andspool heads having inner flanges and adjacent annular outwardly pressedparts and located on the ends of said core with said flanges inengagement therewith, the abutting end edges of said ridges and saidlock seam portion-resting in said outwardly pressed parts, the ends ofsaid core being bent said ridges and the lock portion of the said sideseam.

GEORGE F. WALTER.

